Travel & RV Weather Forecast a.m. Saturday 11 December 2021

** High Impact Weather Day today **

  • One powerful storm exits the Great Lakes, while another equally strong storm impacts the West Coast.
  • Severe storms with tornadoes still possible this morning across Kentucky, Tennessee and Alabama.
  • Widespread high winds today and tonight across the Great Lakes, Northeast and down the Appalachians.
  • High winds, blowing snow and dangerous travel conditions for the northern Rockies and western High Plains
  • Feet of snow expected for the Cascade and Sierra Nevada Mountains in long-duration storm.

For details, check out the latest weather animations.

Here’s the long-range travel & RV weather outlook (next update: Sunday 12 December)

— WA and OR Cascades and Olympic Mountains: Winter Storm Warnings and Watches above 2500 feet through Sunday morning. Total accumulations 1-2 feet. Wind gusts to 45 mph. I-90 impacted.

— Portions of west-central and southwest WA: Flood Watches in effect through this evening for heavy run off from the current storm.

— Western WA and northwest OR, including the Seattle and Portland metro areas: Wind Advisories this Saturday morning. Gusts 40-50 mph. I-5, I-90 impacted.

— Eastern and southeast WA; northeast and north-central OR: Wind Advisories through this afternoon. Gusts to 55 mph. I-84, I-90 impacted.

— OR Coast: High Wind Warnings through this afternoon. Gusts up to 65 mph. US-101 impacted.

— Northern CA higher terrain and Sierra Nevada Range: Winter Storm Warnings and Watches above 3500 feet this afternoon through Tuesday. 1-2 feet at lower elevations and up to 2-5 feet in the higher Sierra passes. I-5, I-80, US-50 highly impacted.

— Northeast WA, most of ID north of I-84, northwest MT: Winter Storm Watches and Advisories late tonight through Tuesday. 4-10 inches of snow in the valleys and up to 4 feet of snow in the passes and mountains. Gusts to 50 mph. I-84, I-90 impacted.

— Northwest MT Northern Rocky Mountain Front: Blizzard Warning through Sunday morning. 3-16 inches snow with wind gusts to 90 mph.

— North-central, southwest MT: High Wind Warnings through this evening. Gusts to 65-80 mph. I-25, I-90 impacted.

— South-central MT: Wind Advisory through Sunday evening. Wind Gusts 60-70 mph. I-90 highly impacted from Livingston to Big Timber.

— Southeast WY, north-central CO: High Wind Warnings through Sunday afternoon. Gusts 60-70. I-25, I-80 impacted.

— Portions of southeast WY along I-25 and I-80. Blizzard Warnings through Saturday afternoon for widespread blowing snow and near-zero visibility. Wind gusts 60-75 mph. I-25, I-80 highly impacted and will likely be closed by Wyoming DOT.

— Northern and central WI, MI Upper Peninsula: Winter Storm Warnings and Advisories through midday today. An additional 2-5 inches snow expected. Wind gusts 35-45 mph. I-94 impacted this morning.

— Northern Lower MI: Dense Fog Advisory through mid-morning. I-75 impacted.

— Northern and central IL; northern and central IN; lower MI; northern and central OH; northern WV; western MD; PA; DE; NJ; NY; MA; CT; RI; most of VT: Wind Advisories and High Wind Warnings (along Lakes Erie and Ontario and northern NY) through late tonight. Gusts 45-55 mph in Advisory areas and 60-70 mph in the Warning regions. Winds will progress west to east through this area today and tonight. Major highways impacted include I-65, I-70, I-75, I-80, I-81, I-90, I-95, IN Toll Road, OH Turnpike, PA Turnpike, NY Thruway, NJ Turnpike, Garden State Parkway, Mass Turnpike.

— East-central KY, central TN, northern AL, northwest MS: Tornado Watches continue through late this morning. Although the severe weather threat should be decreasing, the thunderstorms are still capable of producing damaging winds and isolated strong tornadoes for several more hours. Major highways potentially impacted include: I-40, I-65, I-75.

— Eastern KY, central and eastern TN, northern AL, west and southwest VA, far-western NC: Wind Advisories through this afternoon. Gusts 40-50 mph. Major highways impacted include I-40, I-65, I-75, I-81.

— South-central NC, upstate SC, northeast GA: Dense Fog Advisories through midmorning. I-20, I-77, I-85 impacted.

— Northern FL, southern GA, AL and MS Coasts: Dense Fog Advisories through mid-morning. I-10, I-75, I-95 impacted.

— Northern NY, southern and eastern VT, north-central MA, NH, most of ME: Winter Weather Advisories through this afternoon for light freezing rain. I-87, I-89, I-91, I-93, I-95 impacted.

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